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Ch.23 Section 1 & 2 (Chemical Reactions)

Quiz by Phil

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15 questions
Show answers
  • Q1
    A short way to use symbols and numbers to represent a SUBSTANCE is called?
    chemical equation
    bonds
    chemical reaction
    chemical formula
    30s
  • Q2
    A process in which one or more substances change to make 1 or more new substances?
    chemical symbols
    ionic bonds
    chemical formula
    chemical reaction
    30s
  • Q3
    What is an example of a chemical reaction?
    leaves changing color in the fall
    blowing soap bubbles
    ice melting
    30s
  • Q4
    You accidently spill chlorine bleach on your jeans. It creates a white spot. What is the chemical reaction sign?
    odor change
    precipitate (solid forms)
    color change
    gas formation
    30s
  • Q5
    We combine glue, baking soda and eye solution. Slime is created. What is the sign this is a chemical reaction?
    energy change
    precipitate (solid forms)
    gas formation
    color change
    30s
  • Q6
    H2O What does this represent?
    chemical equation
    Chemical formula
    chemical reaction
    30s
  • Q7
    NaCl What does this represent?
    chemical formula
    chemical equation
    chemical reaction
    30s
  • Q8
    Where are the reactants?
    Question Image
    left side of the arrow
    there are no reactants
    right side of the arrow
    30s
  • Q9
    Where are the products?
    Question Image
    Left side of the arrow
    There are no products
    Right side of the arrow
    30s
  • Q10
    On the reactant side, what does the 2 stand for in Nitrogen?
    Question Image
    coefficient
    subscript
    superscript
    30s
  • Q11
    On the reactant side, what does the 3 stand for in Hydrogen?
    Question Image
    superscript
    coefficient
    subscript
    30s
  • Q12
    What is a precipitate?
    formation of solid
    formation of liquid
    formation of gas
    rain
    30s
  • Q13
    True or False: Some signs of chemical reactions are gas formation, solid formation, color change, temperature change
    True
    False
    30s
  • Q14
    On PRODUCT side...how many atoms of carbon are there?
    Question Image
    4
    2
    5
    3
    30s
  • Q15
    on REACTANT side...how many atoms of Hydrogen are there?
    Question Image
    3
    4
    2
    8
    30s

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